<article>
<form action="<?php echo url_for('buscar/enviar') ?>" method="POST">
  <table>
      <thead>
          <tr>
              <th colspan="3">
              FORMULARIO PARA BUSQUEDAS
              </th>
          </tr>
      </thead>
      <tbody>
      <tr>
          <td colspan="3"><?php echo $formulario; ?></td>
      </tr>
      </tbody>
    <tfoot>
    <tr>
      <td></td>
      <td></td>
      <td colspan="3"><input value="Consultar" type="submit" /></td>      
    </tr>
    </tfoot>
  </table>
</form>
</article>
    